Tadalafil 20 Milligrams: Uses, Dosage, and How Long It Lasts

Tadalafil 20 milligrams is a higher-strength dose of tadalafil commonly used as needed for erectile dysfunction (ED). It may be prescribed when a lower on-demand dose does not provide an adequate effect and the 20 mg dose is considered appropriate.

Unlike tadalafil 5 milligrams, which is commonly associated with once-daily treatment, tadalafil 20 mg is generally used before anticipated sexual activity rather than taken continuously every day.

What Is Tadalafil 20 Milligrams?

Tadalafil is a phosphodiesterase type 5 (PDE5) inhibitor and the active ingredient in Cialis. It is also available as generic tadalafil. A 20 mg tablet contains 20 milligrams of tadalafil.

For erectile dysfunction, tadalafil helps increase blood flow to the penis in response to sexual stimulation. Tadalafil does not automatically produce an erection, and sexual arousal is still required for the medicine to work.

What Is Tadalafil 20 mg Used For?

Tadalafil 20 mg is primarily used as an on-demand treatment for erectile dysfunction. The usual recommended starting dose for on-demand treatment is often 10 mg. Depending on effectiveness and tolerability, the dose may be increased to 20 mg or reduced to 5 mg.

This means 20 mg should not automatically be viewed as the standard tadalafil dose for everyone. The appropriate dose depends on individual response, side effects, medical history, and other medicines being taken.

How Long Does Tadalafil 20 mg Take to Work?

Tadalafil is generally taken before anticipated sexual activity. It may begin working within about 30 minutes for some people, although individual response varies.

Taking the tablet does not mean an erection will occur immediately. Tadalafil facilitates the natural erectile response, so sexual stimulation is necessary.

How Long Does Tadalafil 20 mg Last?

One of the main characteristics of tadalafil is its long duration of action. Tadalafil may remain effective for up to 36 hours after a dose, which is substantially longer than the typical effective window associated with shorter-acting PDE5 inhibitors such as sildenafil.

The 36-hour period does not mean that an erection lasts for 36 hours. Instead, it describes a period during which achieving an erection may be easier when sexual stimulation occurs.

The actual duration and effectiveness can differ between individuals.

Tadalafil 20 mg vs 5 mg

Although both strengths contain the same active ingredient, tadalafil 5 mg and tadalafil 20 mg are commonly associated with different treatment strategies.

• Tadalafil 5 mg: may be prescribed once daily, allowing tadalafil exposure to be maintained continuously.
• Tadalafil 20 mg: is generally used on demand before anticipated sexual activity when the higher dose is appropriate.

People interested in the daily regimen can read our guide to tadalafil 5 milligrams, which explains how the lower-strength daily approach differs from higher on-demand doses.

Is 20 mg a High Dose of Tadalafil?

Yes. For erectile dysfunction, 20 mg is generally the highest recommended on-demand tadalafil dose. Taking more does not necessarily improve the response and may increase the likelihood of adverse effects.

Tadalafil 10 mg and 20 mg are intended for use before anticipated sexual activity and are not generally recommended for continuous daily use. People who need frequent treatment may instead be assessed for a lower once-daily regimen.

Can You Take Tadalafil 20 mg Every Day?

Tadalafil 20 mg should not normally be used as a continuous daily dose. For people for whom frequent tadalafil use is appropriate, lower-dose once-daily regimens such as 2.5 mg or 5 mg may be considered instead.

The dosing schedule should be determined with a healthcare professional rather than by splitting, increasing, or repeating doses without medical advice.

Does Food Affect Tadalafil 20 mg?

Tadalafil can generally be taken with or without food. This differs somewhat from sildenafil, whose onset may be delayed after a high-fat meal.

Heavy alcohol consumption should be avoided because alcohol and tadalafil can both lower blood pressure. Combining them may increase symptoms such as dizziness, headache, increased heart rate, or low blood pressure.

Who Should Not Take Tadalafil 20 mg?

Tadalafil is not suitable for everyone. In particular, it must not be combined with nitrate medicines, because the combination can cause a potentially dangerous fall in blood pressure.

Additional medical assessment may be necessary for people with certain cardiovascular conditions, significant kidney or liver impairment, low blood pressure, or those using medicines that can interact with tadalafil.

Common adverse effects can include headache, indigestion, back pain, muscle aches, flushing, and nasal congestion. Serious symptoms such as chest pain, sudden vision or hearing loss, or an erection lasting longer than four hours require urgent medical attention.

Is Tadalafil 20 Milligrams Right for Everyone?

No. Tadalafil 20 milligrams is a higher on-demand dose and is not necessarily the best choice for every patient. Some people obtain an adequate response from 10 mg, while others may be better suited to a lower daily regimen.

The goal is not simply to use the highest available dose. Treatment should provide an adequate response with acceptable tolerability, taking into account individual health conditions, medications, and frequency of sexual activity.

References

1. Electronic Medicines Compendium (emc). Tadalafil 20 mg film-coated tablets – Summary of Product Characteristics.
2. Electronic Medicines Compendium (emc). Cialis 20 mg film-coated tablets – Summary of Product Characteristics.
3. U.S. Food and Drug Administration. Cialis (tadalafil) prescribing information.